GB2157298B - Solid phase deformation process - Google Patents
Solid phase deformation processInfo
- Publication number
- GB2157298B GB2157298B GB08509237A GB8509237A GB2157298B GB 2157298 B GB2157298 B GB 2157298B GB 08509237 A GB08509237 A GB 08509237A GB 8509237 A GB8509237 A GB 8509237A GB 2157298 B GB2157298 B GB 2157298B
- Authority
- GB
- United Kingdom
- Prior art keywords
- solid phase
- die
- workpiece
- deformation process
- phase deformation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/30—Drawing through a die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
Abstract
A process for the deformation of a workpiece comprising an orientable, thermoplastic polymer by passage in the solid phase through a die having both an entry side and an exit side, which process comprises providing the workpiece comprising the orientable, thermoplastic polymer which is initially present, at least in part, in an extended chain crystalline morphology at the entry side of the die; causing the workpiece to deform in the solid phase through the die; and collecting the deformed workpiece from the exit side of the die.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8409656 | 1984-04-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8509237D0 GB8509237D0 (en) | 1985-05-15 |
GB2157298A GB2157298A (en) | 1985-10-23 |
GB2157298B true GB2157298B (en) | 1987-11-18 |
Family
ID=10559627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08509237A Expired GB2157298B (en) | 1984-04-13 | 1985-04-11 | Solid phase deformation process |
Country Status (6)
Country | Link |
---|---|
US (1) | US4938913A (en) |
EP (1) | EP0161802B1 (en) |
JP (1) | JPH0659680B2 (en) |
AT (1) | ATE54094T1 (en) |
DE (1) | DE3578399D1 (en) |
GB (1) | GB2157298B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6174934B1 (en) | 1993-06-01 | 2001-01-16 | Stryker Technologies Corporation | Non-oxidizing polymeric medical implant |
US6849224B2 (en) | 1999-04-21 | 2005-02-01 | Howmedica Osteonics Corp. | Methods for preparing selectively cross-linked polyethylene orthopedic devices |
US7858671B2 (en) | 1996-02-13 | 2010-12-28 | The General Hospital Corporation | Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices |
US8003709B2 (en) | 1996-07-09 | 2011-08-23 | Orthopaedic Hospital | Crosslinking of polyethylene for low wear using radiation and thermal treatments |
US8563623B2 (en) | 1996-02-13 | 2013-10-22 | The General Hospital Corporation | Radiation melt treated ultra high molecular weight polyethylene prosthetic devices |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63126724A (en) * | 1986-11-17 | 1988-05-30 | Nippon Valqua Ind Ltd | Manufacutring of fluorine resin rod |
GB8628730D0 (en) * | 1986-12-02 | 1987-01-07 | Mackley M R | Polymer forming process |
GB2207436B (en) * | 1987-07-24 | 1991-07-24 | Nat Research And Dev Corp The | Solid phase deformation process |
GB8916231D0 (en) * | 1989-07-14 | 1989-08-31 | Evans Kenneth E | Polymeric materials |
US5169587A (en) * | 1990-06-15 | 1992-12-08 | Symplastics Limited | Process for extruding large oriented polymer shapes |
US5204045A (en) * | 1990-06-15 | 1993-04-20 | Symplastics Limited | Process for extruding polymer shapes with smooth, unbroken surface |
GB9524744D0 (en) * | 1995-12-04 | 1996-02-07 | Smith & Nephew | Composites |
JPH10323890A (en) * | 1997-05-23 | 1998-12-08 | Nippon Oil Co Ltd | Manufacture of fluororesin drawing molded product |
US7807247B1 (en) | 1999-10-29 | 2010-10-05 | Bromley Robert L | Flexlock with headed pintle and conical buttressing |
JP4807718B2 (en) | 1999-10-29 | 2011-11-02 | サムソナイト アイピー ホールディングス エス.エー.アール.エル. | Method for producing a non-fiber structure |
GB0128405D0 (en) * | 2001-11-27 | 2002-01-16 | Btg Int Ltd | Process for fabricating polyolefin sheet |
CA2429930C (en) | 2002-06-06 | 2008-10-14 | Howmedica Osteonics Corp. | Sequentially cross-linked polyethylene |
EP3184275B1 (en) | 2003-05-22 | 2020-04-29 | Canco Hungary Investment Ltd. | Polymeric articles |
US8262976B2 (en) * | 2004-10-07 | 2012-09-11 | Biomet Manufacturing Corp. | Solid state deformation processing of crosslinked high molecular weight polymeric materials |
US7462318B2 (en) * | 2004-10-07 | 2008-12-09 | Biomet Manufacturing Corp. | Crosslinked polymeric material with enhanced strength and process for manufacturing |
US7344672B2 (en) * | 2004-10-07 | 2008-03-18 | Biomet Manufacturing Corp. | Solid state deformation processing of crosslinked high molecular weight polymeric materials |
KR100876457B1 (en) * | 2005-07-29 | 2008-12-29 | 주식회사 엘지화학 | Solid state extrusion orientation method using ultrasonic wave and apparatus for same |
DE602007006055D1 (en) * | 2006-11-10 | 2010-06-02 | Dow Global Technologies Inc | STRUCTURES IN THE SOLID-STATE CONDITION OF A FILLED POLYMER COMPOSITION UP TO A STABLE HOLLOW SIZE AND DENSITY |
US8641959B2 (en) | 2007-07-27 | 2014-02-04 | Biomet Manufacturing, Llc | Antioxidant doping of crosslinked polymers to form non-eluting bearing components |
WO2009079206A1 (en) * | 2007-12-17 | 2009-06-25 | Dow Global Technologies Inc. | Shaping die and its use in a solid state drawing process |
ES2625887T3 (en) | 2009-03-09 | 2017-07-20 | Eovations, Llc | Cavitated oriented polyethylene polymer compounds |
US9586370B2 (en) | 2013-08-15 | 2017-03-07 | Biomet Manufacturing, Llc | Method for making ultra high molecular weight polyethylene |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB656300A (en) * | 1948-10-01 | 1951-08-22 | British Mechanical Prod Ltd | Production of rods, tubes and the like from polytetrafluorethylene |
GB1052090A (en) * | 1963-08-23 | |||
GB1109871A (en) * | 1964-08-10 | 1968-04-18 | Atomic Energy Authority Uk | Improvements in or relating to extrusion apparatus |
US3451241A (en) * | 1966-09-01 | 1969-06-24 | Western Electric Co | Methods of hydrostatic extrusion |
US3507941A (en) * | 1967-07-12 | 1970-04-21 | Us Navy | Process to increase strength of artificial organic materials |
GB1220182A (en) * | 1968-02-27 | 1971-01-20 | Ici Ltd | Reinforced thermoplastic composite materials |
US3714320A (en) * | 1968-09-30 | 1973-01-30 | Shell Oil Co | Cold extrusion process |
GB1311885A (en) * | 1969-07-01 | 1973-03-28 | Ici Ltd | Deformation of polymeric materials |
JPS5017106B1 (en) * | 1970-12-16 | 1975-06-18 | ||
GB1423138A (en) * | 1972-03-04 | 1976-01-28 | Dunlop Ltd | Method of making articles |
US3944536A (en) * | 1973-06-18 | 1976-03-16 | E. I. Du Pont De Nemours & Company | Exceptionally rigid and tough ultrahigh molecular weight linear polyethylene |
GB1480479A (en) * | 1973-06-28 | 1977-07-20 | Nat Res Dev | Process for the production of polymer materials |
WO1980002671A1 (en) * | 1979-06-06 | 1980-12-11 | Nat Res Dev | Polymer processing |
US4360898A (en) * | 1980-06-30 | 1982-11-23 | International Business Machines Corporation | Programmable logic array system incorporating Josephson devices |
SU1033591A1 (en) * | 1981-04-06 | 1983-08-07 | Ордена Ленина Институт Химической Физики Ан Ссср | Method for making polycomponent synthetic fibers |
-
1985
- 1985-04-11 EP EP85302534A patent/EP0161802B1/en not_active Expired - Lifetime
- 1985-04-11 AT AT85302534T patent/ATE54094T1/en not_active IP Right Cessation
- 1985-04-11 DE DE8585302534T patent/DE3578399D1/en not_active Expired - Lifetime
- 1985-04-11 GB GB08509237A patent/GB2157298B/en not_active Expired
- 1985-04-12 JP JP60079144A patent/JPH0659680B2/en not_active Expired - Lifetime
-
1988
- 1988-12-16 US US07/289,393 patent/US4938913A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6174934B1 (en) | 1993-06-01 | 2001-01-16 | Stryker Technologies Corporation | Non-oxidizing polymeric medical implant |
US7858671B2 (en) | 1996-02-13 | 2010-12-28 | The General Hospital Corporation | Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices |
US8263676B2 (en) | 1996-02-13 | 2012-09-11 | The General Hospital Corporation | Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices |
US8563623B2 (en) | 1996-02-13 | 2013-10-22 | The General Hospital Corporation | Radiation melt treated ultra high molecular weight polyethylene prosthetic devices |
US8865788B2 (en) | 1996-02-13 | 2014-10-21 | The General Hospital Corporation | Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices |
US8003709B2 (en) | 1996-07-09 | 2011-08-23 | Orthopaedic Hospital | Crosslinking of polyethylene for low wear using radiation and thermal treatments |
US8008365B2 (en) | 1996-07-09 | 2011-08-30 | Orthopaedic Hospital | Crosslinking of polyethylene for low wear using radiation and thermal treatments |
US6849224B2 (en) | 1999-04-21 | 2005-02-01 | Howmedica Osteonics Corp. | Methods for preparing selectively cross-linked polyethylene orthopedic devices |
Also Published As
Publication number | Publication date |
---|---|
EP0161802A2 (en) | 1985-11-21 |
JPS60236718A (en) | 1985-11-25 |
DE3578399D1 (en) | 1990-08-02 |
EP0161802B1 (en) | 1990-06-27 |
JPH0659680B2 (en) | 1994-08-10 |
ATE54094T1 (en) | 1990-07-15 |
EP0161802A3 (en) | 1986-01-08 |
GB8509237D0 (en) | 1985-05-15 |
US4938913A (en) | 1990-07-03 |
GB2157298A (en) | 1985-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 20050410 |